DE3147707A1 - Teil einer hueftgelenkprothese - Google Patents
Teil einer hueftgelenkprotheseInfo
- Publication number
- DE3147707A1 DE3147707A1 DE19813147707 DE3147707A DE3147707A1 DE 3147707 A1 DE3147707 A1 DE 3147707A1 DE 19813147707 DE19813147707 DE 19813147707 DE 3147707 A DE3147707 A DE 3147707A DE 3147707 A1 DE3147707 A1 DE 3147707A1
- Authority
- DE
- Germany
- Prior art keywords
- ring
- part according
- prosthesis
- insert
- bone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4609—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of acetabular cups
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30113—Rounded shapes, e.g. with rounded corners circular
- A61F2002/30118—Rounded shapes, e.g. with rounded corners circular concentric circles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30317—The prosthesis having different structural features at different locations within the same prosthesis
- A61F2002/30322—The prosthesis having different structural features at different locations within the same prosthesis differing in surface structures
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30317—The prosthesis having different structural features at different locations within the same prosthesis
- A61F2002/30324—The prosthesis having different structural features at different locations within the same prosthesis differing in thickness
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
- A61F2002/30538—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation
- A61F2002/3054—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation about a connection axis or implantation axis for selecting any one of a plurality of radial orientations between two modular parts, e.g. Morse taper connections, at discrete positions, angular positions or continuous positions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/3082—Grooves
- A61F2002/30827—Plurality of grooves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
- A61F2002/30858—Threads interrupted by grooves or sidewalls, e.g. flat sidewalls
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
- A61F2002/30861—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface having threads of increasing or decreasing height
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
- A61F2002/30873—Threadings machined on non-cylindrical external surfaces
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2002/3241—Joints for the hip having a ring, e.g. for locking the femoral head into the acetabular cup
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
- A61F2002/3429—Acetabular cups with an integral peripheral collar or flange, e.g. oriented away from the shell centre line
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0026—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in surface structures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0036—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in thickness
Description
- "Teil einer Hüftgelenkprothese"
- Die Erfindung bezieht sich auf ein in einen hüftgelenk-Knochen einsohraubbares Teil einer Hüftgelenkprothese.
- Ein bekanntes Teil dieser Art (DE-AS 24 11 617) ist als Pfanne ausgebildet Der Erfindung liegt die Aufgabe zugrunde, dss eingangs erwähnte Teil derart auszubilden, daß es im Knochen langer festsitzt als die bekannte Pfanne Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Teil als Ring ausgebildet ist Ein Ring hat eine größere Elastzität als eine Pfanne. Er ist daher der Knochenelastizität besser angepaßt und sitzt daher länger im Knochen fest als eine Pfanne. Als weiterer Vorteil kommt hinzu, daß bei dem erfindungsgemässen Ring weniger Knochenmaterial weggenommen werden muß als bei einer Pfanne.
- Perforationen können sich deshalb weniger leicht ergeben Die Innenwand des Ringes kann zylindrisch oder konisch sein, wobei für den Ring Einsätze vorgesehen sind, deren Außenwände dann ebenfalls zylindrisch oder konisch sind.
- Die konische Form bringt den Vorteil mit sich, daß der Einsatz verdrehungssicher in dem Ring steckt und daß die Kräfte, insbesondere die axial wirkenden Kräfte, nicht nur von einem Kragen des Einsatzes sondern auch von der konischen Wand des Einsatzes aufgenommen werden.
- Die zylindrische Form läßt es zu, daß der Einsatz im Ring axial verschieblich ist und daß demgemäß seine Lage den speziellen Verhältnissen, insbesondere den verschiedenen knochenstärken, angepaßt werden kann.
- In beiden Fällen kann man überdies Einsätze mit verschiedenen Höhen vorsehen, um auf diese Weise den verschiedenen Verhältnissen, insbesondere den verschiedenen Knochenstärken, Rechnung zu tragen.
- Will man den erfindungsgemässen Ring zusammen mit e:em einsatz in einen Knochen einsetzen, so geht man beispielsweise folgendermassen vor: Es wird zunächst ein Ring in den Knochen eingeschraubt. Dann wird mittels eines Probeeinsatzes mit Fenster im Boden ermittelt, welcher Einsatz erforderlich ist.
- Ferner kann in den erfindungsgemässen Ring auch der Kopf einer sogenannten Doppelkopfprothese unmittelbar eingesetzt werden, wobei die Kunststoffkappe dieses Kopfes fest im Ring sitzt.
- Dann müßte entweder die Innenwand des Ringes sphärisch sein, oder es müßte die Kugelfläche durch einen konischen oder zylindrischen Bereich unterbrochen sein, der dem Ring innen anliegt.
- Weitere Einzelheiten der Erfindung ergeben sich aus der eich-Ring. Darin zeigen: Eigç 1 einen erfindungsgemässen Ring; Fig. 2 einen Einsatz dazu und Fig. 5 eine andere Ausführungsform der Erfindung.
- In Fig. 1 ist der Ring 1 aus Metall mit einer zyl idrischen Innenwand 2 versehen.
- Der in Fig.2 veranschaulichte Einsatz @ aus kunststoff be sitzt eine zylindrische Außenfläche 49 die Sc'3tt in die Innenfläche 2 des Ring paßt.
- Der Ring 1 wird in den Knochen eingeschraubt. Anschliessend wird der Einsatz 3 in bezug auf Fig. 1 von links unten her in den Ring 1 eingesetzt. Je nach den Gegebenheiten wird der Einsatz 3 mehr oder weniger weit in das Loch 5 eingeschoben.
- In Fig. 5 ist mit 1 wieder der erfindungsgemässe Ring bezeichnet. In ihm sitzt ein Kopf 9 bestehend aus einer Kunststoffkappe 8 und einem Innenteil 9, einer sogenannten Doppelkopfprothese. Die Kappe 8 sitzt fest im Ring 1.
Claims (1)
- Ansprüche einen Hüftgelenk-Knochen vorzugsweise zementirei einschraubbares Teil einer Hüftgelenkprothese, dadurch ge -k e n n z e i c h n e t 9 daß dieses als Ring (1) ausgebildet ist 2 Teil nach Anspruch 1, dadurch g e k e n n z e i c h n e t daß dessen Innenwand (2) zylindrisch ist.Teil nach Anspruch 1, dadurch g e k e n n z e i c h n e daß dessen Innenwand sich konisch von außen nach innen verjüngt.4. Teil nach einem oder mehreren der Ansprüche 1 bis 3, dadurch g e k e n n z e i c h n e t 2 daß für dieses Einsätze (3) vorgesehen sind, die die Pfannen der prothese bilden.5. Teil nach Anspruch 4, dadurch g e k e n n z e i c h n e t daß die Einsätze () verschiedene Höhen haben 6. Teil nach Anspruch 4 oder 5, dadurch g e k e n n z e i c b -n e t , daß die Stirnseite (6) eines Einsatzes (3) außen strukturiert9 insbesondere mit rechtwinklig zueinander stehenden Rillen (7) versehen ist 7. Teil nach einem oder mehreren der Ansprüche 4 bis 6, dadurch g e k e n n z e i c h n e t , daß der Einsatz (3) im zentralen Bereich der Pfanne dem Knochen anliegt.8. Teil nach einem oder mehreren der Ansprüche 1 bis ->, dadurch g e k e n n z.e i c h n e t , daß dieses (1) als unmittelbare Aufnahme für einen Prothesenkopf, der außen eine Kunststoffkappe (8) trägt ("Doppelkopfprothese"), dient, wobei die Kappe (8) fest im Ring (1) sitzt.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813147707 DE3147707A1 (de) | 1981-05-18 | 1981-11-27 | Teil einer hueftgelenkprothese |
AT82730068T ATE17823T1 (de) | 1981-05-18 | 1982-05-18 | Kuenstliche hueftpfanne. |
DE8282730068T DE3268929D1 (en) | 1981-05-18 | 1982-05-18 | Artificial hip socket |
EP82730068A EP0065482B2 (de) | 1981-05-18 | 1982-05-18 | Künstliche Hüftpfanne |
US06/487,185 US4795470A (en) | 1981-05-18 | 1983-04-21 | Two-part socket for hip-joint prosthesis |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3120148 | 1981-05-18 | ||
DE19813147707 DE3147707A1 (de) | 1981-05-18 | 1981-11-27 | Teil einer hueftgelenkprothese |
EP82730035 | 1982-03-15 | ||
US06/487,185 US4795470A (en) | 1981-05-18 | 1983-04-21 | Two-part socket for hip-joint prosthesis |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3147707A1 true DE3147707A1 (de) | 1982-12-23 |
Family
ID=27432674
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19813147707 Ceased DE3147707A1 (de) | 1981-05-18 | 1981-11-27 | Teil einer hueftgelenkprothese |
DE8282730068T Expired DE3268929D1 (en) | 1981-05-18 | 1982-05-18 | Artificial hip socket |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8282730068T Expired DE3268929D1 (en) | 1981-05-18 | 1982-05-18 | Artificial hip socket |
Country Status (4)
Country | Link |
---|---|
US (1) | US4795470A (de) |
EP (1) | EP0065482B2 (de) |
AT (1) | ATE17823T1 (de) |
DE (2) | DE3147707A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8810783U1 (de) * | 1988-06-06 | 1988-10-20 | Mecron Medizinische Produkte Gmbh, 1000 Berlin, De |
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US4960427A (en) * | 1983-03-08 | 1990-10-02 | Joint Medical Products Corporation | Ball and socket bearing for artifical joint |
US4678472A (en) | 1983-03-08 | 1987-07-07 | Joint Medical Products Corporation | Ball and socket bearing for artificial joint |
US4978356A (en) * | 1983-03-08 | 1990-12-18 | Joint Medical Products Corporation | Ball and socket bearing for artificial joint |
US6042611A (en) * | 1983-03-08 | 2000-03-28 | Joint Medical Products Corporation | Ball and socket bearing for artificial joint |
US4801301A (en) * | 1983-03-08 | 1989-01-31 | Joint Medical Products Corporation | Ball and socket bearing for artificial joint |
FR2554342A1 (fr) * | 1983-11-09 | 1985-05-10 | Sorem | Perfectionnements apportes aux protheses cotyloidiennes se maintenant d'elles-memes |
EP0142759A3 (de) * | 1983-11-22 | 1985-12-27 | Protek AG | Hüftgelenkpfanne |
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DE8431422U1 (de) * | 1984-10-23 | 1985-11-21 | Mecron Medizinische Produkte Gmbh, 1000 Berlin | Trägerelement |
DE8500869U1 (de) * | 1985-01-11 | 1985-12-19 | Mecron Medizinische Produkte Gmbh, 1000 Berlin | Künstliche Hüftpfanne mit einem Tragelement und einem Pfanneneinsatz |
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-
1981
- 1981-11-27 DE DE19813147707 patent/DE3147707A1/de not_active Ceased
-
1982
- 1982-05-18 EP EP82730068A patent/EP0065482B2/de not_active Expired - Lifetime
- 1982-05-18 AT AT82730068T patent/ATE17823T1/de not_active IP Right Cessation
- 1982-05-18 DE DE8282730068T patent/DE3268929D1/de not_active Expired
-
1983
- 1983-04-21 US US06/487,185 patent/US4795470A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8810783U1 (de) * | 1988-06-06 | 1988-10-20 | Mecron Medizinische Produkte Gmbh, 1000 Berlin, De | |
US4963154A (en) * | 1988-06-06 | 1990-10-16 | Mecron Medizinische Produkte Gmbh | Acetabular cup as part of a hip joint prosthesis |
Also Published As
Publication number | Publication date |
---|---|
EP0065482A3 (en) | 1983-01-05 |
US4795470A (en) | 1989-01-03 |
DE3268929D1 (en) | 1986-03-20 |
EP0065482B2 (de) | 1990-10-24 |
EP0065482B1 (de) | 1986-02-05 |
ATE17823T1 (de) | 1986-02-15 |
EP0065482A2 (de) | 1982-11-24 |
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